Pipe coupling



FIG. 1 is a top view of a pipe coupling showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a left view thereof;

FIG. 5 is a right view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a first perspective view;

FIG. 8 is a perspective view of the pipe coupling in use; and,

FIG. 9 is an exploded perspective view of the pipe coupling in use.

The broken line portions of the figure drawings are included to show unclaimed subject matter only and form no part of the claimed design. The pipe coupling is shown broken away in the middle to indicate that it has no specific length. 

The ornamental design for a pipe coupling, as shown and described. 